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alpha: force old OSF1 syscalls for getegid, geteuid and getppid [BZ #24986]

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On alpha, Linux kernel 5.1 added the standard getegid, geteuid and
getppid syscalls (commit ecf7e0a4ad15287). Up to now alpha was using
the corresponding OSF1 syscalls through:
 - sysdeps/unix/alpha/getegid.S
 - sysdeps/unix/alpha/geteuid.S
 - sysdeps/unix/alpha/getppid.S

When building against kernel headers >= 5.1, the glibc now use the new
syscalls through sysdeps/unix/sysv/linux/syscalls.list. When it is then
used with an older kernel, the corresponding 3 functions fail.

A quick fix is to move the OSF1 wrappers under the
sysdeps/unix/sysv/linux/alpha directory so they override the standard
linux ones. A better fix would be to try the new syscalls and fallback
to the old OSF1 in case the new ones fail. This can be implemented in
a later commit.

Changelog:
	[BZ #24986]
        * sysdeps/unix/alpha/getegid.S: Move to ...
	* sysdeps/unix/sysv/linux/alpha/getegid.S: ... here.
        * sysdeps/unix/alpha/geteuid.S: Move to ...
	* sysdeps/unix/sysv/linux/alpha/geteuid.S: ... here.
        * sysdeps/unix/alpha/getppid.S: Move to ...
	* sysdeps/unix/sysv/linux/alpha/getppid.S: ... here
(cherry picked from commit 1a6566094d3097f4a3037ab5555cddc6cb11c3a3)
This commit is contained in:
Aurelien Jarno 2019-09-14 18:22:52 +02:00
parent 3c3f8dc307
commit b1299aab22
5 changed files with 12 additions and 0 deletions
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10
ChangeLog
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@ -1,3 +1,13 @@
2019-09-14 Aurelien Jarno <aurelien@aurel32.net>
[BZ #24986]
* sysdeps/unix/alpha/getegid.S: Move to ...
* sysdeps/unix/sysv/linux/alpha/getegid.S: ... here.
* sysdeps/unix/alpha/geteuid.S: Move to ...
* sysdeps/unix/sysv/linux/alpha/geteuid.S: ... here.
* sysdeps/unix/alpha/getppid.S: Move to ...
* sysdeps/unix/sysv/linux/alpha/getppid.S: ... here
2019-09-08 Adhemerval Zanella <adhemerval.zanella@linaro.org>
* sysdeps/hppa/fpu/libm-test-ulps: Update.

2
NEWS
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@ -12,6 +12,8 @@ The following bugs are resolved with this release:
[24682] localedata: zh_CN first weekday should be Monday per GB/T
7408-2005
[24867] malloc: Remove unwanted leading whitespace in malloc_info
[24986] alpha: new getegid, geteuid and getppid syscalls used
unconditionally
Version 2.30

0
sysdeps/unix/alpha/getegid.S → sysdeps/unix/sysv/linux/alpha/getegid.S
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0
sysdeps/unix/alpha/geteuid.S → sysdeps/unix/sysv/linux/alpha/geteuid.S
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0
sysdeps/unix/alpha/getppid.S → sysdeps/unix/sysv/linux/alpha/getppid.S
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